Early iPhone 4 adopters on AT&T who want to upgrade to the iPhone 4S were out of luck at the 4S launch, unless they wanted to pay an extra $450 (plus tax on that!) for the privilege of getting the phone a month early. However, if you're still waiting, it looks like AT&T has moved up the upgrade date for at least a few subscribers.

For example, my upgrade date was the 20th, and I'm already holding a new iPhone 4S in my hand as of right today. Here's how to check your upgrade date. Head to the iPhone 4S store page on Apple's site. Click the check eligibility link, and type in your account details. If everything checks out, you should be getting your phone a couple days early. Score.